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<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>transition</title>
        <link rel="stylesheet" href="transition.css">
    </head>
    <body>
        <p>盒子的多个属性一起动画，width、height、bacground-color、transform，将光标悬停在盒子上查看动画</p>
        <div class="box"></div>
        <p id="delay1">4s 过渡改变字体大小，2s 延迟——在元素上鼠标悬停时与开始动画效果之间</p>
        <div class="sidebar">
            <p><a class="menuButton" href="transition">home</a> </p>
            <p><a class="menuButton" href="transition">about</a> </p>
        </div>

        <div id="timings-demo">
            <div id="ease" class="demo-box">Ease</div>
            <div id="ease-in" class="demo-box">Ease-in</div>
            <div id="ease-out" class="demo-box">Ease-out</div>
            <div id="ease-in-out" class="demo-box">Ease-in-out</div>
            <div id="linear" class="demo-box">Linear</div>
            <div id="cubic-bezier" class="demo-box">Cubic-bezier</div>
        </div>



    </body>
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